Answer :

Given: z1 = (2 – i) and z2 = (1 + i)

To find:


Consider,



Putting the value of z1 and z2, we get





Now, rationalizing by multiply and divide by the conjugate of 1 – i




[(a – b)(a + b) = a2 – b2]



[Putting i2 = -1]



= |2(1 + i)|


= |2 + 2i|


Now, we have to find the modulus of (2 + 2i)


So,



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Find the real valRS Aggarwal - Mathematics

Solve the equatioRD Sharma - Mathematics

If |z + 1| = z + RD Sharma - Mathematics

Find the conjugatRD Sharma - Mathematics

Find principal arMathematics - Exemplar

Find the real valRS Aggarwal - Mathematics

Find the conjugatRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics

If z = <imgRS Aggarwal - Mathematics

Express each of tRS Aggarwal - Mathematics